Spare-rim and tire locking device



Nov. 12, 1929. F. T. ROOT SPARE RIM AND TIRE LOCKING DEVICE 2Sheets-Sheet Filed Feb. 15. 1926 gym/manic: flan/P177001 abhor we;

Nov. 12, 1929. F. T. ROOT SPARE RIM AND TIRE LOCKING DEVICE Filed Feb.15. 1926 2. Sheets-Sheet 2 a at. -53

rim.

Patented Nov. 12, 1929 UNITED STATES mam orrlcs I FRANK T. ROOT, OIINDIANAPOLIS, INDIANA-, ASSIGNOR, ZBY MESNE ASSIGNMENTS, TO

DETROIT AND SECURITY TRUST COMPANY, A GORPORATIQN OF MICHIGAN SPARE-RIMAND TIRE LOCKING DEVICE The invention relates to improvements in tirecarriers of the type adapted to prevent surreptitious removal of thespare t1re and t is an object of the invention to provide a tire carrierupon which a spare tire and itsrim may be readily placed and locked inposition, yet at the same time removed by an authorized person withequal ease.

The invention more specifically relates to an improved form of rim clampand lock therefor used in connection with the tire carrier.

In the drawings Figure 1 discloses a view looking at the rear of thetire carrier; and,

Figure 2 is a sectional view through the rim clamp lock.

Fig. 3 is a top View showing the rim clamp without the locking elementapplied thereto.

Fig. 41S a detailed view of a locking element per se. 7

Referring now more particularly to the drawings wherein like referencecharacters indicate corresponding parts, the numeral 1 designates a tiresupporting or carrying ring constructed of metal of U-shapedcross-section. This ring is connected with suitable supports 2 by meansof which the rim is supported from the chassis of a vehicle. At theupper portion thereof the ring 1 carries a 1 pair of rim seats 3, eachbeing riveted to the rim by rlvets 4. These seats are of a metallicconstruction and of a contour corresponding to the contour of the underside of the demountable rim 5.

At the lower portion of, the ring 1 an aperture 6 passes therethrough.This aperture is adapted to receive a threaded bolt 7 The function ofthe threaded bolt is to secure the rim clamp 8 against the uppersurfaces of the positioned rim 5. The rim clamp has suitable rimengaging sides 9 fitting against each side of the rim 5 at the edgesthereof while an intermediate partition 10 is provided having anaperture 11 registering with the aperture 6 in the ring 1. The sides ofthe rim clamp extend substantially above this partition and are formedwith suitablelatching detents 12 which engage the under side ofshoulders 13 to hold the locking device 14 in position.

"rim'as shown in Figure 2. This is accom- It willbe appreciated thatwhen a rim is placed on the carrier it seats upon the fixed seats 3 andthe rim clamp lock "8 is then clamped down upon the lower portion of theplished by tightening the nut 15 on'the bolt 7 which draws the rim clampdownwardly until it has a locking engagement with the rim.

' After this has been accomplished the locking device-14 is slipped intothe open end of the rim clamp andthe detents laby reason of theirbeveled under faces ride over the flange Hand are then urged out bysuitables'prings whereby the locking device 14 is locked into positionTo remove the locking device 14 and to gain access to the nut 15 of thescrew or bolt 7, a locking key is inserted which draws the detents orplungers 13 into the carrierbecaus'e it is impossible to move the rimclamp 8 from its locking position with respect to the rim until the nut11 of the bolt 7 is engaged. k Having thus described my invention, whatI claim is: I

1. A rim clamp lock for spare wheels said lock being of substantiallyU-shaped cross section and having spaced side walls adapted to engage asparerim, a partition extending laterally across said clamp intermediatethe ends of said side walls providing in the clamp an open-ended pocket,a removable lock controlled closure for cooperating with the walls ofsaid pocket to close the open end thereof,

an element passing through an opening in said partition for securingsaid clamp in operative position and having a portion thereof located inthe open-ended pocket.

2. A rim clamp adapted to be removably applied as a unit to a tirecarrier, said rim clamp having spaced side walls constructed to span thecarrier and havin portions engageable With the supported run, and meanscooperating with the clamp and carrier respectively for radiallyadjusting the clamp into operative position with respect to thesupported rim, said clamp having an opening rendering said meansaccessible, and a lock controlled closure attachable to the clamp forclosing the opening to prevent unauthorized access to said means.

3. A rim clamp for spare rims of substantially U-shaped cross sectionand having spaced side walls adapted to engage a spare rim, said sidewalls being divergingly disposed, a partition extending laterally acrosssaid clamp intermediate the ends of the side walls for defining in theclamp a pocket, a

- fastening element passing through an opening in the partition andaccessible through said pocket, and a removable lock controlled closureengageable with the pocket for preventing unauthorized access to thefastening element.

l. A rim clamp for spare tire carriers adapted to be removably appliedto the tire carrier, said clamp having side walls constructed to spanthe carrier and portions engageable with the supported rim, a lateralelement within the clamp engageable with the carrier, and a fasteningelement cooperatively associated with the carrier and partition andadapted upon adjustment to move the clamp radially into operativerelationship with respect to the supported rim, and a lockingdevice'carried by the clamp for rendering the fastening deviceinaccessible against unauthorized use.

5. A rim clamp for spare rims supported by tire carriers, comprisingside walls constructed to span the carrier and having terminal portionsengaging and substantially conforming to the side beads of the supportedrim, an adjusting device cooperatively associated with the clamp andcarrier respectively, and adapted to move the clamp, as a unit, radiallyinto binding engagement with r the supported rim, and a lock controlleddevice rendering said adjusting means inaccessible against unauthorizeduse.

In testimony whereof I afliX my signature.

FRANK T. ROOT.

